[R] error message: "is"

William Dunlap wdunlap at tibco.com
Fri Nov 12 17:48:40 CET 2010

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Kathrin Linsler
> Sent: Friday, November 12, 2010 5:22 AM
> To: r-help at r-project.org
> Subject: [R] error message: "is"
> Hello.
> using the lm command, I always receive the error message 
> "couldn't find
> the function "is"". Do you haven an idea, what that means?

Try adding the line
before calling lm().  (I've heard that some front-ends
for R do not load the methods package by default.)

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com  

> Thanks for your help.
> Best regards.
> Kathrin L.
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